GM Service Manual Online
For 1990-2009 cars only

Transmission Fluid Cooler Hose Replacement L61

Removal Procedure

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .

  2. Object Number: 1203536  Size: SH
  3. Remove the left radiator air deflector retainers.
  4. Remove the left radiator air deflector.

  5. Object Number: 1203509  Size: SH
  6. Unclip the transmission oil cooler pipe from the fan shroud.
  7. Place a drain pan under the transmission oil cooler pipes.
  8. Remove the transmission oil cooler pipes attachment nut from the transmission.

  9. Object Number: 1203519  Size: SH
  10. Remove both transmission oil cooler pipes from the transmission.
  11. Remove the transmission oil cooler pipes from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .

  12. Object Number: 1203513  Size: SH
  13. Remove the transmission oil cooler pipes.
  14. Remove the transmission oil cooler pipes attachment stud from the transmission if damaged.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.

  1. Install the transmission oil cooler pipes attachment stud to the transmission if removed.
  2. Tighten
    Tighten the stud to 7 N·m (62 lb in).


    Object Number: 1203513  Size: SH
  3. Install the transmission oil cooler pipes.
  4. Install the transmission oil cooler pipes to the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .

  5. Object Number: 1203519  Size: SH
  6. Install both transmission oil cooler pipes to the transmission.
  7. Install the transmission oil cooler pipes attachment nut to the transmission.
  8. Tighten
    Tighten the nut to 7 N·m (62 lb in).


    Object Number: 1203509  Size: SH

    Important: Use the service clip P/N 15738800 in hole below the transmission oil cooler fan shroud integral clip, if damaged.

  9. Clip the transmission oil cooler pipe to the fan shroud.

  10. Object Number: 1203536  Size: SH

    Important: Radiator air deflectors must be properly installed or reduced A/C and engine cooling system performance could occur.

  11. Install the left radiator air deflector.
  12. Install the left radiator air deflector retainers.
  13. Lower the vehicle.
  14. Inspect the transmission fluid level. Refer to Transmission Fluid Check .

Transmission Fluid Cooler Hose Replacement LX9

Removal Procedure

  1. Remove the right headlamp. Refer to Headlamp Assembly or Headlamp Bulb and/or Cornering, Sidemarker, Park, Turn Signal Bulb Replacement in Body - Lighting Systems.
  2. Remove the upper transmission oil cooler pipe from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .

  3. Object Number: 1203537  Size: SH
  4. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  5. Remove the lower radiator air deflector retainers.
  6. Remove the lower radiator air deflector.

  7. Object Number: 1203530  Size: SH
  8. Remove the right front fender liner. Refer to Front Fender Liner Replacement .
  9. Remove the right radiator air deflector retainers.
  10. Remove the right radiator air deflector.

  11. Object Number: 1203535  Size: SH
  12. Remove the left radiator air deflector retainers.
  13. Remove the left radiator air deflector.
  14. Place a drain pan under the transmission oil cooler pipes.
  15. Remove the transmission oil cooler pipes attachment nut from the transmission.

  16. Object Number: 1203519  Size: SH
  17. Remove both transmission oil cooler pipes from the transmission.

  18. Object Number: 1203515  Size: SH
  19. Remove the transmission oil cooler pipes clip from the fan shroud.

  20. Object Number: 1203522  Size: SH
  21. Remove the lower transmission oil cooler pipe from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .
  22. Remove the transmission oil cooler pipes.
  23. Remove the transmission oil cooler pipes attachment stud from the transmission if damaged.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.

  1. Install the transmission oil cooler pipes attachment stud to the transmission if removed.
  2. Tighten
    Tighten the stud to 7 N·m (62 lb in).


    Object Number: 1203522  Size: SH
  3. Install the transmission oil cooler pipes.
  4. Install the lower transmission oil cooler pipe to the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .

  5. Object Number: 1203515  Size: SH
  6. Install the transmission oil cooler pipes clip to the fan shroud.

  7. Object Number: 1203519  Size: SH
  8. Install both transmission oil cooler pipes to the transmission.
  9. Install the transmission oil cooler pipes attachment nut to the transmission.
  10. Tighten
    Tighten the nut to 7 N·m (62 lb in).


    Object Number: 1203535  Size: SH

    Important: Radiator air deflectors must be properly installed or reduced A/C and engine cooling system performance could occur.

  11. Install the left radiator air deflector.
  12. Install the left radiator air deflector retainers.

  13. Object Number: 1203530  Size: SH
  14. Install the right radiator air deflector.
  15. Install the right radiator air deflector retainers.
  16. Install the right front fender liner. Refer to Front Fender Liner Replacement .

  17. Object Number: 1203537  Size: SH
  18. Install the lower radiator air deflector.
  19. Install the lower radiator air deflector retainers.
  20. Lower the vehicle.
  21. Install the upper transmission oil cooler pipe to the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .
  22. Install the right headlamp. Refer to Headlamp Assembly or Headlamp Bulb and/or Cornering, Sidemarker, Park, Turn Signal Bulb Replacement in Body - Lighting Systems.
  23. Inspect the transmission fluid level. Refer to Transmission Fluid Check .